package com.leyou.item.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.leyou.item.entity.Sku;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Update;

import java.util.Map;


public interface SkuMapper extends BaseMapper<Sku> {


    //商品减库存
    @Update({"update tb_sku set stock = stock- #{num},sold = sold+ #{num} where id=#{skuId}" })
    void subtractStock(Map<String, Object> paramHashMap);
}
